Stop-motion for combers and the like.



Patented Jan. 1, 1918.

2 SHEETS-SHEET I P. J. DOCKRAY, DECD.

M. 1. DOCKRAY. ADMINISTRATRIX.

STOP MOTION FOR COMBERS AND THE um.

APPLICATlON FILED 0CT.23, I916. A T

Patented an" 1, 1918.

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PETER J. DOCKRAY, DECEASED, LATE OF WOONSOCKET, RHODE, ISLAND, BY MARY J. DOCKRAY, ADMINISTRATRIX, 0F WOONSOCKET, RHODE ISLAND.

STOP-MOTIQN FOR COMBERS AND THE LIKE.

Specification of Letters Patent.

Patented Jan. 11,1918.

Original application filed Septemberfi, 1914, Serial No. 860,401. Divided and this application filed October 23, 1916. Serial No. 127,296.

To all whom it may concern:

Be it knownthat PETER J. DOCKRAY, deceased, late a citizen of the United States, residing at lVoonsocket, in the county of Providence and State of Rhode Island, invented certain new and useful Improvements in Stop-Motions for Combers and the like, of which the following is a specification, reference being had therein to the accompanying drawing.

,This invention provides a stop-motion for use in association with combers and other fiber-treating machines, and it is an object of the invention to provide efficient and reliably-acting means, the functioning of which is dependent upon occurrence of certain conditions. in the material passing through themachine. V

More particularly, the invention relates to means, opera-ting upon the exhaustion or absence of material after passing rolls 11f? fecting movement of the material, to close and reliably maintain closed for the period necessary an electric circuit that initiates operation of mechanism that operates to stop the machine with which the invention is associated, as shown by the application of said Peter J Dockray, for stop-motion for combers and the like, filed September 5, 19-14, Ser. N 0. 860,401, of which the present application is a division.

Vvhile it is not the intention to limit the application of the invention *0 any partic- In such a machine thes-top-motion should operate when. there is. a lap run out, a lap up on a detaching-roll, a pulling apart of sliver on the table, a pull-ingapart of sliver between the draw-box calender-rollsand the coiler, and a roll-lap in the draw-boxyand the stop-motion provided by this invention is arranged to stop the machine on occurrence of any of these conditions.

When read in connection withthe description herein, the details of construction and arrangement of parts contemplated by the invention will be apparent. from the accompanying drawings, forming part hereof, wherein an embodimentof the invention is disclosed, for purposes of illustration.

While the disclosures herein noware considered to exemplify a preferable embodiment of the invention, it is not the intention to be limited necessarily thereto in interpretation of the claims, as alterations within the limits of the claims can be made without departing from the nature and spirit of the invention. I

Like reference-characters refer to corre- Fig. 4 is a view of parts as seen when looking in the direction of the arrow, Fig. 3;

Fig. 5 is a side view of a circuit-closing device between the draw-box calender-rolls and the coiler;

Fig. 6 is a view of parts as seen when looking in the direct-ion of the arrow, Fig. 5;

Fig. 7 is a side view of a lap-run-out mot1on;

.Fig. 8 is a view thereof looking in the direction of the arrow, Fig. 7 and Fig. 9 is a plan view of the lap-run-out motion and other parts. Referring more particularly to the drawlngs, in which parts of a comber as hereinbefore mentioned are disclosed, 17 designates a sliver-pan into which sliver is delivered from the combing mechanism of the machine and whence it is drawn as a round strand through a trumpet 18 by an upper calender-roll 19 on a shaft 20'and a lower calender-roll 21 on a shaft 22 and delivered onto a sliver-table 23, one set of such parts being shown as exemplary of others in the machine.

Extending along the sliver-table andsupported on and insulated from the machineframe are a series of standards 24, which carry at their upper ends a rod 25 extending longitudinally 'of the table above the sets of calender-rolls. Fast on the rod above each set of calender-rolls is a hanger or depending support 26, from the lower portion of which laterally extends a counterrod 27 having disposition substantially parallel to the rod 25. An abutment 28 is held its their free ends.

j shibtr nethe: u r d"ne r it f ee end by a set-screw 29, and depending from the abutment is a stop 30. lhe abutment holds on the counter-rod a boxing 31, which is a part of a swlng -trame that comprises side arms 32, which flare. outwardly from the boxing, as shown at" 33, and then con tinue in parallel relation to each othergtlov One of the flaringportions 33 ofthegframe is capable of contact with the stop 30, whereby downward movement of the free ends of the arms is limited and contact of anypart of the swing-frame with the sliver-table is prevented. L The side arms .ar'ea suilicient'distance apart to enable them to straddle or to be disposed slightly beyond eaclrend of the top calenderroll, and they are so curved that they extend from behind and under theshaft-of that roll with their free ends above the sliver-table beyond the place of emergence of sliver from between the: rolls One of the side. armsynear its free end has secured thereto orformeol 1n- .tegrally therewith a depending plate 3%, 25

which extends partially across the space between the two arms and fully across the path of movement of the sliver from betweenptherolls. The plate is cutawayfrom its lower edge, whereby there is formed an opening or passage-way 35 for movement therethrough under normal conditions of sliver ,,.fr0111,the rolls to the table A rockshaft or its equivalent 36 is mounted pivotally near the ends of the arms and outside of and adjacent to the plate at, and' from this shaft depends aVsliver-contactplate or 1 a lower position by the plate, the pawl will ngage th rack, close an electric circuit,-

1 and-stop the machine in a manner hereinafterdescribed. Moreover, when the sliver breaks beyond the; calender-rolls, or when it stops being drawn for any reason :beyond the delivery side of theirollswhilethe niachine is inoperation, sliver Will accumulate between the rolls and the plate 34 andby pushing of the material against the plate as it is delivered-from the rolls it will oper ate to raise the swing-arms to contact with the upper calender-roll shaft 20 and thereby;

close the electriccircuit; or such lifting'of thefree'end of the swmg-frame may be such as to permit theplate 37 to swing sulhci'ently' tolbringthe pawl 38 into engagement with -motioni' v I V I The rod 25 extends at onefen'd over-the drawn by any suitable means, as by 'co'ilerrolls 49, anddeliveredintoiacoilencan 50,

all ma manner commonlyv practised in the art.

In order thatthe machine may b'estopped in case the sliver 'brealzs' or becomes exhausted between the draw-box calender-rolls and the coiler-rolls, the 'stop motion includes means controlled byth'e' 'sliver between those two sets of rolls 'f'orc'l'osingan electric circuit and" causing 7 operation of the stopdraw-box, and on that end of't'he' rod there is secured by aset-scifejwtl an arm 52, which is'c'i'irv'ed so't'hat it extendslaterally, downwardly, and longitudinally from the; rod. The free end ofth'e arm has extending'l'aterally therefrom a p'in -or shaft 53, which is disposed transversely of'the path of movemeat of the sliver and" slightly removed from the normal position of movementof the sliver; A 'sliver contact member is carried-by the shaft 53;;This member includes an intermediate porti n-54, preferablyof metal, whi intimated on thefsliaft, which has jts'lower side pr edge curved from the path of; travel f at the sheet; as shown at '55, in mag ne-sliver l easily :pass thereov plate" '56, ptefe'r': ablybf woodyseei ired'to d "at 11* ends I wa a1 roga uremaintains p0 io it' is arranged totrafl' 201:1? th niovin '"jj A' finger pa'wr'57 extends downwardl from v the intermediate portion, and it is: a1" ranged to" be capable 0f conta-ct with a ratchet-wheel BSlco's'efOi-i the shaft 1470f the 1 1 0 upper arawtox ''calender roll 46 when the Contact iii-ember swings" one direction; Wl'iere'by an electric cir'iiit 'is -closed and the stop-motion 5 caused to" operate; A 'ho'ri'z'on tally-adjustable' abutinent' 59 is secured to the coiler ca nopp'ositetdthe platebtio f the v p contact member; and thesn' er 'nioves' in con met with this abutment'orgums in" its pee: sage from the calender rolis to the top of the-can. The cenita'ct ifiemberis so 'posi 12o tier-led" that the plate; "person thereafwin rest on the' 'sliveijduring 't's nbriiial 'Inove ment, and tire'a'batmentisso adjusted that, when there is'sliver'betweenit andth'e' plate, thefingei or paw157-isout of'contact with the ratchet-wheel 58; Whenfth'e' sitter is exhausted between the plate and labiit "ant, I as; when there is' breakage; theplate will swing outwardly 'orf tow'a'rd 'thej abutment and thereby-tense thefinger in -pawl an ea 1 3o gage the ratchet-wheel and close. the circuit. The plate. 56 is of non-conductive material so that it will not close a circuit through the machine in case it contacts with the abutment when the sliver has run out. An extension 60 projec ts upwardly from the upper endof the arm 52 above the rod 25, and thereon is a screw 61, having thereon a lock-nut .62. One end of the screw extends toward theplate 56, and it, serves as a stop for the plate to rest against while an operator is tying broken sliver after stoppage of the machine, so that the lower curvedpart ofithe intermediate portion 5 4 wi1l not swing too far into the normal path of movement of the sliver and so that it will be held in such position that the sliver itself by bearing against the curvedpartwill cause the contact member to swing to normal position when, normal movement of the sliver is resinned, I V

, For the purpose of stopping the machine when there. is a lap run out, there is provided a device shown more particularly by Figs. 7, 8, and 9, in which 63 designates the lap; 64 the rear rolls for the lap carried ona shaft 65 66 ratchet-wheels rotatably mounted on the shaft 65 .one at each end of each roll 64 and rotating normally with the rollsv under. the influence of frictional contact imposed by washers 67 and collars 68, which keep the wheels against the ends of the rolls; 69 the front rolls for the lap carried on a shaft 70; and 71 a longitudinal frame member of the machine adjacent to the rolls 69.

Fixedly secured to the frame member 71 by bolts 72 and insulated by non-conductive material 73 there are several brackets or arms 74 each extending rearwardly between adjacent ends of the rolls 69 and under the shaft 70. These arms support and have securely held in their ends by set-screws 75 a longitudinally-extending rod 7 6, which the material 73 insulates from the machine. Upright standards 77 are secured to the rod 76, one opposite to each ratchet-wheel 66. Each standard has extending from its upper end in parallel relation to the rolls a pin or stub-shaft 78 on which is journaled an arm 79 intermediate'its ends. The arm 79 on one side of its pivotal point extends as a weighted pawl 80 toward one of the ratchet-wheels 66, with which its end is capable of engagement. The arm on the other side of its pivotal pointhas a nonconductive lap-contact member 81 extending therefrom into a slot 82 in one of the lap-aprons 83 of the machine. Each pair of lap-rollers, it will be seen, has a pivoted arm 79 at each end, and one of the contact members 81 extends into each side portion of the lap-apron.

The relative arrangement of the parts is such that, when the lap is passing normally being treated as hereinbefore described. t

over the apron, the pawl 80 will be keptout of engagement with the ratchet-wheel 66 by contact of the member 81 with the lap. When the lap runs out and there is no lap to keep themember 81 down, the weighted pawl, which overbalances the other, side of the arm 79, will be permittedto fall into engagement with the ratchet-Wheel, whereby a circuit is closed and the machine is causedto stop. r

The ratchet-wheels 39, 58, and 66, which are engaged, respectively, by pawls 38, 57, and 80 when the circuit is to be closed, more reliably maintain engagement and electrical contact with the pawls than if the slivercontrolled contact members merely touched a smooth part and they prolong the contact for the period required to attain the result for which the circuit is closed. Moreover, in view of the reliability of the contact, the liability of arcing of the current between the contact points is reduced materially.

The circuit-closers herein described are adapted for use with anysuitable mechanism, whose action is controlled or initiated by an electric circuit, arranged to stop the machine with which the circuit-closers are associated whenany of the latter acts on O0- currence of certain conditions in the material As an example of the manner in which circuit-closers such as exemplified herein may be employed, those disclosed more particularly by Figs. 3 and 4, and 7 and 8, are shown, respectively, by Figs. 2 and 9 in association with an electric circuit set forth diagrammatically in connection with fragmentary views of a power-shifting mechanism of the kind shown in detail by the hereinbefore-mentioned prior application Ser. No. 860,401. In these arrangements, one wire of the circuit is connected to the insulated rod 25, in electrical connection with which rod are the sliver-controlled circuitclosers, that is to say the arms 32 of the swing-frame, the pawl 38 of the contact member 37, and the finger or pawl 57 of the contact member carried by the shaft 53, and a conductor leads from the rod 25 to the insulated rod 76 ofthe lap-controlled circuitcloser; and the other wire of the circuit is grounded in the machine. When any or all of the circuit-closers mentioned operate as heretofore described, the calender-roll and lap-roll shafts being electrically associated with the machine, the circuit is closed, and

the action of the power-shifting mechanism thereby is instituted.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is-

1. In a machine in which material treated continuously moves, a stop-motion comprising the combination, with a roll affecting movement of the material and a shaft upon 'c'on'dit'ioh" in the mater'i'al, ztr'l' ilectric circuit having said paw as one pole and said h h'e i le an h pc e de po shiftihgfdevice COfltTOHd' by said circuit, 10 2, In a machine in which material treate d cc'rrtin musly moves, a StOp-m'6ticn]co1ripris the combination, Withe r011 affecting fixevenin't' (if the mateii'al, a Shaft 011 which the 'rl lfis 'l'rl'ofirifie'clsfa'ncha r'atCheMVHeI on d shaft, of a 'pivotally-mbfinte'cl arm fpcs'g seBsih'g'a tendency tqn ove 'irl'to e gagement with saiclratchet-wheel; fztnflja part" extending co'mi'gubusly to the niqx' i rg'mafcerial and by cqhiii'ct With the mzifeliai normally holding 20 pawl ;0'1'10 of eil'ga'gement With said rat'chet-wh'eelfetn electric circuit having said pzpWL as one pcleehd said ratchet-Wheel as ahthr pole, and a power-Shifting device controlled by said circuit. v v 25 :3. In a machine in which material treated c'ciitinuou'sly moves, a step-motion bornp'ri'sk ing the" cdr' bihzptioh, with a r611 aflectin'g rhdvefilent 0f the material and a shdft upon movement 0 

